baber/WOPTO huggingface dataset:
Patent GB-903699-A (GB)
Title: Motion picture reflex camera
IPC: G03B19/18
Filed: 1959-07-06
Abstract: 903,699. Kinematographic cameras. CONTINA BUREAUXUND RECHENMASCHINENFABRIK A.G. July 6, 1959 [July 16, 1958; April 21, 1959], No. 23157/59. Class 97 (1). A motion picture reflex camera comprises a reciprocating mirror carrier which has two mirror surfaces arranged on either side of an opening so that in one position the light ray can pass through an aperture therein. As shown, light passing through the objective 2 either strikes one of two mirrors 3 and is reflected to the eye 10 via a reflecting prism 6 and eyepieces 9 or passes through an aperture 19 in the mirror carrier 11 and through a shutter to a film (not shown) carried in a film guide 17. The mirror carrier is made to reciprocate along a guide 12 by means of crank-pin 14 moving in a slot 13, said pin being driven by a spring-drive or electric motor. This motor also reciprocates a shutter 20 and feeds the film. The shutter has a diaphragm of variable size comprising two plates 25, 30, movable by the moving shutter acting through pins 26, 29 engaging slots 28, 27, respectively. The size of the diaphragm aperture is varied by raising or lowering the carrier 23 of plate 25. This moves the plates 25, 30 and hence the diaphragm aperture defining edges 36, 37 towards or away from each other. Carrier 23 is moved in a vertical direction by a lever 31, the pin 33 of which engages a slot 34 in the carrier.
Patent GB-337768-A (GB)
Title: Improvements in process of preparing base exchange materials
IPC: C01B33/46
Filed: 1929-07-27
Abstract: 337,768. Triggs, W. W., (General Zeolite Co.). July 27, 1929. Double silicates.-Base-exchanging compounds are obtained by reacting together an alkaline metal silicate, an alkaline compound of an amphoteric hydroxide and a non-alkaline compound of an amphoteric hydroxide to form a gel embracing substantially the whole reaction mixture. An acid or caustic soda or both may be added to the reaction mixture. In examples, a solution of aluminium sulphate to which has been added sulphuric acid is mixed with a solution of sodium silicate and a solution of sodium aluminate then added; and a solution of sodium silicate, to which has been added caustic soda, is mixed with a solution of aluminium sulphate and a solution of sodium aluminate. then added, but the order of mixing the components may be varied. Reference is made to the use also of sodium zincate or sulphate, potassium silicate, hydrochloric acid, potassium hydroxide or carbonate, and sodium carbonate or bicarbonate. The reaction product may be alkaline to phenolphthalein, or neutral to phenolphthalein and litmus, but alkaline to methyl orange. The gel may be dried, with or without pressing, and after granulation be washed to remove soluble salts. Reference has been directed by the Comptroller to Specification 279,466.
Patent GB-1092004-A (GB)
Title: Method and means for forming shoe soles and simultaneously bonding them to shoe uppers by vulcanization, and shoes obtained thereby
IPC: B29C35/00
Filed: 1966-05-24
Abstract: Stitch-like ornamentations (10) are formed on an upper (5) during forming and simultaneous bonding by vulcanization of a sole (7) to the upper.  The ornamentations (10) are formed by recesses (9) in sealing lips (1a), (2a) of mould halves (1), (2) respectively, the sealing lips preventing egress of the material to be vulcanized during moulding.  Ornamental stitching 13, 14 may also be formed on the sole.
Patent GB-930882-A (GB)
Title: Process and apparatus for the production of acetylene
IPC: C07C2/78
Filed: 1960-07-04
Abstract: <PICT:0930882/III/1> Apparatus for the production of acetylene by the pyrolysis or partial combustion of light hydrocarbons has a reaction chamber of variable volume but constant cross section.  A and B are inlets for hydrocarbon and oxygen.  The gases are reacted in chamber 2 and quenched with water at 3.  The length of the reactor chamber may be varied by means of the threaded shafts 6 along which move burner block bolts 8 and which are rotated by sprocket wheels 9 and worm screws 10.  During operation the length of the reactor is adjusted to give maximum yield.
Patent GB-1115926-A (GB)
Title: Improvements in aerosol valves
IPC: B65D83/14
Filed: 1965-06-01
Abstract: 1,115,926. Delivering measured quantities of liquid. H. S. NADAL. 1 June, 1965 [3 June, 1964; 19 May, 1965], No. 23314/65. Heading B8N. [Also in Division F1] An aerosol valve for dispensing measured quantities of liquid comprises a deformable valve body 6 mounted in a casing 1 and an operating stem 14 which, when operated, deforms the body and at the same time puts a liquid measuring chamber 10 into communication with an outlet passage 20, deformation of the body being limited by contact with the walls of the casing. The valve body is made from a resilient synthetic plastics material and is formed with a projection 9 for engagement with a valve member 16 on the stem 14; the inner end of the stem abuts a portion 8 of the valve body. In operation, with the valve in the position shown in Fig. 1, liquid, under pressure, flows from a container via a dip tube, ports 5, 13, passages 18, 17 into the chamber 10. Upon depressing the stem by means of a nozzle (not shown) the valve member 16 contacts the projection 9 so as to cut-off the flow from the container and allow a port 19 in the stem to communicate with the chamber 10 so that its contents is dispensed via a passage 20; the valve stem is returned by the resilience of the wall portion 12 of the valve body. In a modification (Fig. 5), the ports 13, 18 and 17 are dispensed with and the liquid flows from the container via a port (30) and ports (39, 39<SP>1</SP>) into a measuring chamber (36); in a further modification, the valve member 16 and projection 9 are replaced by a closure member (74, Fig. 9), mounted on the valve stem; alternatively a resilient washer (63, Fig. 7), may be provided to co-operate with a tapered surface on the valve stem. Further, instead of the valve stem being returned by the resilience of the valve body, a spring may be used. The containers are filled by feeding liquid through the passage 20 and port 19 into the chamber 10, the pressure of the liquid then acting on the projection 9 so as to deflect it away from the valve stem so that the liquid can then pass through ports 17, 18 into the container.
Patent GB-1525212-A (GB)
Title: Composition for forming a fire-proof coating
IPC: C09D1/02
Filed: 1977-06-02
Abstract: 1525212 Intumescent fireproof coating BATTELLE MEMORIAL INSTITUTE 2 June 1977 [4 June 1976] 23403/77 Heading C4A A self-hardening intumescent composition for a fireproof coating comprises (a) an aqueous solution containing 40-80 wt. per cent water soluble alkali metal (e.g. Na) silicate and 60-20 wt. per cent water and as a suspension of particles therein, (b) 20-60 wt. per cent (by weight of total composition) of solid particles of water-soluble, hydrated alkali metal (e.g. Na) silicate containing 15-20 wt. per cent of H 2 O, the molar ratio, SiO 2 /M 2 O (where M#alkali metal) of both silicates being 2-3À5. Fibrous mineral material may be included.
Patent GB-679427-A (GB)
Title: A high precision measuring and regulating relay
IPC: H01H50/20
Filed: 1950-09-25
Abstract: 679,427. Electromagnetic switches. LICENTIA - PATENT - VERWALTUNGS - GES. Sept. 25, 1950. [Oct. 1, 1948] No. 23420/50. Class 38 (v). In electromagnetic relays for measuring and regulating purpose, in order to maintain constant the minimum current at which the relay will operate in spite of variations of the working stroke due to wear or adjustment of contacts, the resultant force acting on the plunger armature 3, i.e. the pull of the electromagnet 2 minus the pull of the supporting spring 6, is made constant throughout the stroke. In other words, for a constant operating current any increase or decrease in the magnetic pull during the stroke owing to the changed position of the armature is exactly compensated by an equal increase or decrease in the force exerted by the biasing spring 6. In the form shown the spring 6 is a leaf spring with a cut-cut portion. It is fixed at one end to a support 7 and carries at its other end a member 5 which is fixed to the armature 3 and which carries a contact spring 10.
Patent GB-1128097-A (GB)
Title: Universal joint
IPC: F16D3/227
Filed: 1966-05-25
Abstract: 1,128,097. Universal joints. BENDIX CORP. 25 May, 1966 [1 June, 1965], No. 23427/66. Heading F2U. In a constant velocity-ratio universal joint wherein torque transmitting balls 32 engage straight grooves 28, 30 in an outer drum 10 and inner hub 18, the balls 32 are retained in a cage 36 having outer and inner spherical surfaces 50, 52 struck from different centres 54, 56 equidistant from the ball plane 42 and engaging the inner cylindrical and outer spherical surfaces of the drum 10 and hub 18 respectively to pilot the cage 32 into the bisector plane. The cylindrical drum 10 permits the hub 18 and cage 36 to move axially. A flexible lubricant retaining cover 66 is provided. Recesses 68 in the cage 36 facilitate assembly.
Patent GB-817402-A (GB)
Title: Sealing ring for bearing and other rotating machine elements
IPC: F16J15/34
Filed: 1956-07-31
Abstract: 817,402. Stuffing-box substitutes. BERGER, A. July 31, 1956 [Aug. 9, 1955], No. 23559/56. Class 122 (5). A seal for bearings and other rotating machine parts comprises concentrically disposed inner and outer rings 11, 12, Fig. 1, one of which is made of polyamide or super polyamide or other abrasion resistant elastic synthetic material and has a circumferential edge engaging a groove in the other so that the rings are relatively rotatable but inseparable. The inner ring 11 of the synthetic material is fixed to a shaft while the metal outer ring 12 is secured to the outer bearing member by an external screwthread 111 or clamping ring; two such seals may be provided in side-by-side relation. If desired, the ring 12 may be carried on a metal inner ring closely mounted on the shaft and the co-operating faces of both the inner and outer rings and the ring 12 may each be provided with two annular grooves. The ring 12 may be injection-moulded or otherwise cast in the ring 11 or between this ring and the inner ring, if such is provided, shrinkage of the material during cooling providing sufficient clearance for relative rotation of the rings. In the form shown in Fig. 4, a metal ring 41 has a sealing ring 44 fixedly mounted on its outer margin and a sealing ring 42 rotatably mounted on its inner margin; the modified arrangement shown in Fig. 5 provides outer and inner metal rings 51, 53 with an intervening ring 52 of abrasion-resistant elastic synthetic material which is injection-moulded in position so that the outer ring is rotatably received in a groove in the ring 52. A further form of seal comprises, as shown in Fig. 6, outer and inner sets of steel rings 61, 63 with an intervening ring 62 of the synthetic elastic material, the rings 61 being rotatable relatively to the ring 62 and the rings 63 anchored in such ring. In yet another arrangement, a steel ring 81, Fig. 8, is clamped at its outer edge to provide axial pressure on a ring 82 of the synthetic material, mounted on its inner periphery, the ring 82 being injection-moulded over the ring 81 which is received with clearance in a groove in the ring 82; the latter may itself embrace an inner metal ring. One alternative to this arrangement is to clamp a ring 102, Fig. 10, of the synthetic elastic material at its outer periphery and to provide the inner periphery of the ring with a groove for the reception of a metal ring 10 which contacts the shaft 100 and is also clamped in position. A further modification comprises inner and outer metal discs 161, 163, Fig. 16, connected by a ring 162 of the synthetic elastic material, relative rotation being permitted between the outer ring 161 and the co-operating groove in the ring 162.
Patent GB-783282-A (GB)
Title: Improvements in or relating to timing devices employing thermionic valves
IPC: H03K17/288
Filed: 1954-08-13
Abstract: 783,282. Discharge-tube relay circuits. IGRANIC ELECTRIC CO., Ltd. Aug. 13, 1954 [Aug. 24, 1953], No. 23565/54. Class 40 (6). The Figure shows an A.C. operated timer in which when initiating switch 9 is open, as shown, capacitor 17 is charged via rectifier 16 and tube 18 to apply a negative bias to the grid of tube 10, to which grid an A.C. signal is also applied via resistor 13 from the tapping on potentiometer 12, tube 10 remaining non- conductive. When switch 9 is closed to initiate a timing period, load 25 is connected to the A.C. mains and tube 18 is cut off due to the bias across resistor 19. Capacitor 17 thus discharges through resistor 14 until tube 10 conducts, relay 8 is energized and load 25 is disconnected from the A.C. mains by the opening of contacts 8b, thus terminating the timing period the duration of which may be varied by adjustment of potentiometer 12 or by altering the values of capacitor 17 or resistor 14. In a modification, Fig. 2 (not shown), resistor 13 is replaced by a half-wave rectifier. Specification 762,208 is referred to.
Patent GB-417411-A (GB)
Title: Improvements in the production of adherent metal coatings upon iron, steel or other metal
IPC: C25D5/36
Filed: 1933-08-25
Abstract: 417,411. Tin-plating. MACNAUGHTAN, D. J., 378, Strand, London. Aug. 25, 1933, No. 23667. [Class 41.] Iron steel or other metal after coating with tin by hot dipping is coated by electrodeposition with a further thin layer of tin to eliminate or reduce porosity in the initial coating. The thickness of the electrolytic deposit may be À00001 to À0001 inch. An alkaline electrolyte is preferred. A suitable electrolyte comprises 150 gms. sodium stannate and 20 gms sodium hydroxide per litre. Deposition is effected at 70-75‹ C. with a current density 15 amps. per sq. ft. Anodes of nickel or iron, for example in sheet form, are employed. The electrolyte is regenerated by supplementary electrolysis with tin anodes and cathodes enclosed in porous cells. The bivalent tin so dissolved is oxidized subsequently or simultaneously for example by the use of an insoluble anode. The metal should be cleaned, for example by treatment with trichlorethylene or by electrolytic treatment in a hot solution before electroplating. It may be given a spangled appearance by etching in a 10 per cent solution of hydrochloric acid before plating. Wire may be coated, and tubes coated inside and outside by the process.
Patent GB-319884-A (GB)
Title: Improvements in or relating to armoured cables
IPC: H01B7/20
Filed: 1928-08-17
Abstract: 319,884. Siemens - Schuckertwerke Akt.-Ges., and Wille, E. Aug. 17, 1928. Armouring.-The sheathing of cables is made of an iron alloy containing an admixture of copper up to 0.3 per cent for the purpose of resisting corrosion. A coating of lead, aluminium, tin, &c. may be applied to the sheathing which may be further covered by alternate layers of fibrous material and an impregnating substance. One arangement is shown in Fig. 2 comprising two rubber insulated conductors a, rubber envelope b, sheathing c, earthing conductor d and alternate layers e, f of an impregnating substance and paper or other fibrous material. Specification 10582/14, [Class 82 (i), Metals, Extracting &c.], is referred to.
Patent GB-879516-A (GB)
Title: Improvements in or relating to electric switches provided with indicating instruments
Inventor: CLIVES STANLEY WILLIAM
IPC: G01R1/20
Filed: 1958-07-23
Abstract: 879,516. Oil-break switches; switch covers; switchgear structures. GENERAL ELECTRIC CO. Ltd. May 19, 1959 [July 23, 1958], No. 23739/58. Class 38 (5). An oil circuit-breaker similar to that described in Specification 879,511 has its lid replaced by a cover 1 containing a voltmeter 4 and ammeter 5, preferably of the screened type, arranged to be connected to the breaker terminals 6, 8. To facilitate this, conducting strips 10, 14 carrying double-spring, V-shaped contacts 13, 16 and attached to an insulating board 9 carrying a similar contact 18, are mounted on the terminals 6, 8 and conductors 20, 21, 22 having knife-shaped contact ends are plugged into contacts 18, 16, 13, the other voltmeter connection being made by a wire 23 and terminal 25. Connectors 29, 30 and conducting bar 31 form the breaker neutral connection. The cover 1 may be interlocked with the breaker to prevent its removal when the breaker is closed. Modifications to the contact arrangement are described if only either the ammeter or voltmeter is required. Specification 879,514 also is referred to.
Patent GB-1475772-A (GB)
Title: Television line-deflection circuit
IPC: H03K4/62
Filed: 1974-05-29
Abstract: 1475772 D.C.-D.C. converters PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 May 1974 [1 June 1973 17 Nov 1973] 23769/74 Heading H2F [Also in Division H3] In a combined line deflection circuit and variable duty-cycle voltage supply therefor, of the type comprising a resonant circuit including deflection coils L y , trace capacitor C t  and retrace capacitor C r , a further voltage supply (e.g. EHT) winding L 4  on a transformer T is more closely coupled to a winding L 3 , supplied with deflection current, than to the supply winding L 1 . This arrangement minimises the step during the trace period and facilitates fifth harmonic tuning. As described, D1 is conductive during the first part of the scan, the trace capacitor C t  discharging via the deflection coils L y . T r  is turned on during the first half of the scan, so as to pass the reversed deflection current via D2. The scan is terminated by turning off T r  so that C r  and L y  provide the half cycle of flyback occillation which is rectified by D4 to provide EHT. D1 becomes conductive at the end of the half cycle to initiate a new scan. The scan amplitude is stabilized by feedback from C t  to a pulse-width modulator D r . C3 minimises parasitic oscillation. Fig. 4 (not shown) graphically depicts the offset of varying the turns ratio L3/L2 and the coupling (which may be O). Fig. 7 (not shown) relates to a threelegged core for transformer T having an air gap in each outer limb and a centre limb forming a coupling-reducing shunt. Modification. In Fig. 9c the pulse-width modulated supply is provided by a further transistor T r  while the line deflection transistor T r  is controlled by a further winding L6. Diode D1 may be formed by the base/collector of T r <SP>1</SP>. In Fig. 6 (not shown) L y  and C t  are connected to tappings on L3. The lower end of L4 is connected to A. In Figs. 9a and 9b (not shown) C1 and L3 are transposed, D3 being connected to their common junction. Fig. 8b relates to a circuit having no D.C. path between the supply side (T r L<SP>1</SP> 2 ) and the deflection side, thus facilitating mains isolation.
Patent GB-1211145-A (GB)
Title: Improvements in hinged or pivotally mounted closure members
Inventor: HALLETT EDWARD JOHN
IPC: E05B65/00
Filed: 1968-05-20
Abstract: 1,211,145. Latches. WESTLAND ENGS. Ltd. 28 March, 1969 [20 May, 1968], No. 23884/68. Heading E2A. A hinged closure member 10 having one or more radius arm 12 as part of the operating mechanims comprises a latch bolt or bolts 15 projecting from a housing 14 attached to the closure member, and engageable with the radius arm or arms when the door is closed. The bolt is withdrawn by pulling a cable 18 attached to a lug on the bolt to allow the door to pivot to the open position. The cable is connected to a handle or the like provided with locking means.
Patent GB-518088-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/00
Filed: 1938-08-15
Abstract: 518,088. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 15, 1938, No. 23994. Convention date, Aug. 13, 1937. Addition to 514,686. [Class 39 (i)] Mixer valves with signal control grid 36 screen grid 37, oscillator control grid 38 and channel electrodes 42 to withdraw from the stream any electrons returning from the oscillator grid 38 as it swings negative-as set out in the parent Specification-have fin extensions 43 to the channels to increase their effect. The cathode is coated only on the sides facing the openings formed by the channels.
Patent GB-949672-A (GB)
Title: Control of servomotor systems
Inventor: KEMPSON BERTRAM CARL
IPC: F15B9/10
Filed: 1959-07-13
Abstract: 949,672. Fluid-pressure servomotor control systems. DOWTY HYDRAULIC UNITS Ltd. July 6, 1960 [July 13, 1959],No. 24027/59. Heading G3P. A servomotor comprises a movable piston member 2, carried by a plunger 3 which is formed with a through bore. A rod 9 has a plunger portion 22 received in the bore and extends through the end cap 12 of the motor cylinder. A control valve unit 14 is mounted in the plunger part 22 and has a spool valve member 16 connected to a rod 36, the valve member 16 controlling the flow of fluid from the right hand side of the piston, fed from an inlet 24, to the left hand side and from the left hand side to a bore 21 in the rod 9. The rod 36 carries two shoulders 42, 43, normally engaged by seat members 39, 41 which are loaded by a spring 38 and bear against the ends of a bore 33 in a member 27, movable in the plunger part 3 between the end 29 and a circlip 31. The rod 36 also carries a piston member 35 either sides of which are connected through passages 46, 47 to fluid inlets 44, 45. In operation manual movement of the member 27 relative to the plunger 3 acts through the respective seat member 39 or 41 and rod 36 to move the spool valve 16 which causes movement of the piston 2 until the valve ports 17, 18 and 19 are in the position shown relative to the spool valve 16. At any time a pressure differential applied across the piston member 35 through inlets 44, 45 causes movement of the rod 36 against its spring loading and overrides the manual control. As described the servomotor controls a hydraulic transmission in which movement of the rod 9 varies the pump delivery, the overriding pressure control being provided by the pressure in the lines from and to the motor of the transmission, under the control of non-return valves whose loading is also varied by rod 9. As described more fully in the Provisional Specification the override control may be formed by two solenoids, the energization of which moves the rod 36 in the required direction. The servomotor may also be of the rotary type.
Patent GB-137790-A (GB)
Title: Improvements in devices for attachment to turning lathes
IPC: B23Q3/06
Filed: 1919-10-02
Abstract: 137,790. Lisles, W. Oct. 2, 1919. Fluid-pressure engines. -A lathe attachment for boring the large ends of internal-combustion engine connecting-rods is attached to the slide rest by the usual tool-box studs and carries a slide 3 vertically adjustable by a screw and clamped by straps 13 after setting. A stud 11, selected, from a set, according to the bore of the small end of the rod is secured in one of the holes 7 and the rod is adjusted laterally by screws in lugs 19 and clamped at 18. The boring- bar is driven by the lathe spindle and the device ensures all rods of a batch being of identical length.
Patent GB-173013-A (GB)
Title: Improvements in automatic signalling in fog and darkness
IPC: B63B45/00
Filed: 1920-08-19
Abstract: 173,013. Hosie, L. C. Aug. 19, 1920. No Patent granted (Sealing fee not paid). Signal ships and floating telegraph stations.- Intermittent luminous or wireless signals are given from barges or floats moored in tide-ways, the energy to operate the signals being derived from turbines on the sea floor driving generators on the floats through long shafting, or bv turboelectric generators fixed on the sides of the floats. Automatic interrupters determine the signals given, which may be such as to indicate latitude and longitude. Selenium cells may be used to switch off the luminous signals by day. Reference has been directed by the Comptroller to Specifications 9274/90 and 8218/97, [both in Class 118, Signalling], and 135,441, [Class 40 (v), Wireless signalling &c.].